In September, Nagahama typically sees daytime highs of 25.9°C and overnight lows around 16.9°C. Compared to the annual average high of 17.8°C, September runs +8.1°C.
September in Nagahama averages a daytime high of 25.9°C and an overnight low of 16.9°C.
September runs +8.1°C compared to Nagahama's annual average high of 17.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 25.9°C and cooler evenings around 16.9°C.